The Defender 100LDS now has crash-tested deflection numbers anchored in concrete at both TL-4 and TL-3. Testing was conducted at the Texas Transportation Institute (TTI) at Texas A&M University.
At TL-4, the barrier recorded 27″ (686mm) of deflection. At TL-3, it recorded 23.4″ (594mm). Both results were achieved anchored directly into concrete.
The anchoring setup
The barrier was anchored with RoadLoc M24-180 anchors at 5″ embedment. The layout used 2 anchors every 4th barrier, a 47′ (14.5m) spacing, in a staggered pattern.
The 5″ embedment works on concrete road surfaces and concrete bridge decks, and the RoadLoc anchor removes cleanly once the work is done. You get positive protection during the work and the surface back when you leave.
One barrier, asphalt to concrete and back
Many work zones do not sit on a single surface. The zone runs along asphalt, crosses concrete road sections or a bridge deck, and returns to asphalt. Contractors have often had to change barrier systems or anchoring methods at each surface change, which costs time on the road.
With these results, the same Defender 100LDS line runs across all of them. Asphalt to concrete road surfaces and bridge decks and back to asphalt, one barrier, one anchor system. Fewer transitions to install, fewer to remove, less time exposed to traffic.
Why concrete numbers were needed
A barrier tested anchored in asphalt does not tell you how it performs anchored in concrete. The two surfaces hold the anchor differently, and the deflection changes with them. We do not extrapolate from one and assume the other.
So we tested it. TL-4 and TL-3, anchored in concrete, at TTI. The numbers above are the measured results, not a model.
This is another step in the tested deployment options for Defender. When you specify the 100LDS for a concrete job, the deflection is known before the barrier goes on the road.
Contact us at safebarriers.com for the full test details or to discuss a deployment.
